Making casings for pneumatic vehicle-tires.



EUBEIATU VE'EGLE TRES.

ULEB um. 1,

MA311@ @AS APP Patented uga i?,

'. SEEETSSwSEEET 2.

up, a rcassfcover'of apneumiticltire casing infaccordance'wvith in'yfmethod;""Fig. 2, an

. line. 3 -3 Fig. 1; @Lal .ascending numerical order of the seriesg' 4:syby line 8 4-8 1n Fig. 6; .Fig 9,- a similar 4'UN'ITED STATES JOHN O. KING, OF MILWAUKEE, WISCONSIN,

MILWAUKEE,

PATENT oFFioE.

ASSIGNOR TO KING LEATHER TIRE -CO., OF4

WISCONSIN.

No. 931,207. Specification of 'Application filed. August 1,

Letters Patent. Patented Aug.

17, 1909. 1907. serial Nasaazi.

To all whom 'it may concern:

Be it known that I, JOHNVO. KING, a citizen of the United States,l and resident of. Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Ma Casings for Pneumatic Vehicle-Tires; an I do hereby declarethat the following is a. full, clear, -and exact description thereof.` if e My invention relates to an economical .production of simple and eiiicien't pninciiiie-` Eoof casings for pneumatic-tires, lts. 'act` ing to provide. ordina clencher-typet' canvas casln carcasses wit adhesive covers of metal-stu ded soft leather (by which is.. meant dry finished leather) said covers'be-` ing formed and applied Without appreciable stretching oftsaid leather. -A Hence said invention consists -in "my' methd'of making said tire-casings, the same being hereinafter particularly set forth with reference to the accompanying drawings and subsequently claimed.

Figure 1 of the drawings reprskents an 'elevation of a fr ent 'of `o11e jov fa] pair' of circular Aleather that .g'orto make .edge view of the vsameshowing'a ushoint" betweeneetions o f said blank; Fig-n33 aA Asimilarview .of the cover on a clenchin ou'ter circumferential edges, this view 'l indicated by line 'll- 4 in the ne'xt figure 1n.

Fig. 5, a side elevation of what is shown in 'Figi 4:; 6, a partly sectional sideelev-atin illustratin a mandrel and a tire-casing cover thereon; ig. 7, a plan view of a fragment of. a leather tread-strip applicable to- .sa-id cover; Fig. 8, across-section indicated view on an enlarged scale illustrating a completed cover on the mandrel; Fi 1l), a cross-section 'of a full sized complete tirecasing, and Fig. 11, a face View oa. fragment of same.

Referring by numerals to the drawings, 1 indicates'each of a series of sectors that gp to make up each of a pair of fiat circular blanks. of, soft, dry, finished leather, said blanks being of predetermined dimensions.- The 'sectors are skived-at their ends and lage,

joined lWhereas the surfaces of the blanks 'are uninterrupted throughout, the joint 2 -being secured by enientlng. The circumferential ed es of said sectors are also skived as in icated by 3 and 4. The blanks being formed, as above specified, their outer skived edges 4 are lap-joined and the joint 6 secured by cement applied to said edges, the product being` a circular shell U-shaped --in cross-section,there being no stretching of theleather in the rr nation4 of the shell; A contractileimandrel is now inserted into the hell and expanded to its"ful1 extent to lill said shellwith-out appreciable stretching of asconiprising a'series of rim-sections 7 8, andl annularin cross-section, the first two of: thsevsections being butt-joined and conn'ected by pins 10 with a foot. 11 of a screwthreaded spindle 12 that is loose in antaper., ture; of a ring 13 that abats an 'adjusting nut or'rgthe s indle. Other spindles-14 are in screvzli.Iliaengagement'yvthuthe rin 13 and-arranged to opposethefrlee ends o the spindles-Tand-B. The rim-section 9 of the mandrel-Lis. in scarf-'joint connection with the other'imf tions and centrally o 'posed by a vpriinilje- 5 having screwthrea enga ewithQt-heu'ing 13, all olf the spin les radi y disposed. thgspindlesflfl and the nuton the s 1n- ',dle 13, 4the."'inandrel'is readilontracte to .permitofits'j being engaged y the tire-casi` cover, andis"r'eadily expanded to fill out said cover thatjis peripherally smoothed on said 4Inandr'eliand itsrim'-face g'iven a true lsen'iicircular contour inv..crosssection withj'out appreciable stretching.A For vheavy duty leather strip 16 inside the shell back of the rim-face of same, thisstrip being skived at its edges and cemented in place prior to the insertion of the mandrel in said shell. After shaping the shell, reinforced or otherwise, uponA the mandrel, a leather treadstri 17 having ski-ved edges is cemented on sai shell Ato form a continuous circumferential shoe, and thereafter. staple Shanks 'of metal anti-skiddingl studs 18 are clenched in Athestructur'e erip erally of the same. The v clenched sha s f the studs aid the cement in holding the reinforcing strip (if any). and `the tread strip to the cover, and they also -impart rigidity to said cover. 'The Shanks of nails' 19V-are also clenched in the fitsle'ather material.' The mandrel is shown By adjustment 'lof it is desirable to insert a reinforce' cover to Ybind *the edges of the tread-strip oi' same in place, all the clenching being done while said cover is on 'the mandrel, or afterward as may be preferred in practice, aclenching-hlock heilig herein shown engaged with said cover after removal of saine from the mandrel. All the leather aforesaid is preferably of finished, higl'i-grade, select chrome, capable of retaining its softness and pliability, under various conditions to which a pneumatic-tire is subjected, and while lieing capable of resisting wear and puncture better than any other suitable known aterial it will not detract from the resiliencyY of the tire to which. itis applied. rlfhc cover being detached from the mandrel it is rubber cemented on'an orcliirar) con'ipound ru`ober-and-canvas carcass 20, the two being subjecte l' to pressure to insure their a( lesion,

or said cover may be vulcanized on said -carcass lo complete the tire-c sing. The leise of the carcass is divided and the dimensions of the cover may be such` as herein shown, to provide for folding ot its skireil edges il on the edges of said carcass Yin which said cover-edges are laid close out of the Way. The carcass being of. the kind for clenchertype tire-casings` care is exercised. in a per- -fect fitting of the cover on the clcncher beads of Said carcass.

By the method above described I produce a pneumatic-tire casing in which the leather cover is self-conforming to the shape of the carcass, Withoutbeing molded or pressed into shape or appreciably stretched. Hence I avoid weakening the traction portion of the cover and retain all the exibility natural to the material of same. vv\7iscol or other suitable material may be used on the leather cover to exclude moisture from the same.

As an article, the tire casing herein shown and described constitutes the subject of 'my adhesively attaching the product to an open casing-carcass having outwardly beaded exa transversely.Li-shaped shell.; adhesirel)v tremities with which said product is made to f conform without closing the opening.

2. A method of making outwardly leather metal studded pneumatic-tire casiugs, the

saine consisting in forming a pair of flat' circular blanks from a series of sectors of soft, dry, finished leather; joining the blanks at their outer circumferential edges to form a. transversely U-shaped shell; adhesively securing metal studs to trued shell and shell; truing the reinforced shell on a inanrel without appreciable stretching; securmetal studs to the trucd shell. and adhcsively attaciing the product lo an open casing-carcass havin" outwardly beaded extremities with which said product is inadeto conform Without closing the opening.

3. A method of making outwardly leather metal studded pneumatic-tire :asin the saine consisting in forming a pair of liat. circular blanks from a series of sectors ot sott, dry finished leather; joining the blanks at their outer circmnfcrential edges lo. "r'i curing an outer leather treat-A; ip lo the shell; truing the reinforced shell on a mandrel without appreciable stretching; securing metal studs to the trued shell, and atl-- hcsirely attaching` the product. to an open casing-carcass having outwardly beaded extremities with which said product is. made to conform without. closing the opening.

il. A method of making outwardly leather metal studded pneumatic-tire casings, the same consisting in forming a pair of flat circular blanks from a series of sectors of soft, dry finished leather; joining theblanlts at their outer circumferential edges to form a tran versely U-shaped shell; adhesivcly securing inner and outer leather tread-strips to the shell; truing the reinforced shell on :L

JOHN '0. KING! lVitnesses-z i I GEO. V. YOUNG, Il. G. B/Ioiuiis.-

lt is hereby certitied that in Letters Patent No. 931,207, granted August 17, 1909,

upon' the application of John O. King, of Milwaukee, liso-onsin, for airimproycment in Making Casings for Pneumatic Vehiclc-"l`ires,an error appears in the printed specification requiring correction, follows: In line 66, page 2, the Words metal studs to trued shell and shouldhe stricken out and the Words 0n nner laat/er treadsm'p to zf/Le .inserted instead; and that the said Letters Patent shouldr-beread with Patent Otlice.

[SEAL] Athis correction therein that the same may conform to lthe record of the case in the S'gnedandsealed this 28th daty of September. A. 19,. 1909.

C. CA BILLLNGS Correction 'in Letters Patent .No 931,201.

cover to Ybind *the edges of the tread-strip oi' same in place, all the clenching being done while said cover is on 'the mandrel, or afterward as may be preferred in practice, aclenching-hlock heilig herein shown engaged with said cover after removal of saine from the mandrel. All the leather aforesaid is preferably of finished, higl'i-grade, select chrome, capable of retaining its softness and pliability, under various conditions to which a pneumatic-tire is subjected, and while lieing capable of resisting wear and puncture better than any other suitable known aterial it will not detract from the resiliencyY of the tire to which. itis applied. rlfhc cover being detached from the mandrel it is rubber cemented on'an orcliirar) con'ipound ru`ober-and-canvas carcass 20, the two being subjecte l' to pressure to insure their a( lesion, or said cover may be vulcanized on said -carcass lo complete the tire-c sing. The leise of the carcass is divided and the dimensions of the cover may be such` as herein shown, to provide for folding ot its skireil edges il on the edges of said carcass Yin which said cover-edges are laid close out of the Way. The carcass being of. the kind for clenchertype tire-casings` care is exercised. in a per- -fect fitting of the cover on the clcncher beads of Said carcass.

By the method above described I produce a pneumatic-tire casing in which the leather cover is self-conforming to the shape of the carcass, Withoutbeing molded or pressed into shape or appreciably stretched. Hence I avoid weakening the traction portion of the cover and retain all the exibility natural to the material of same. vv\7iscol or other suitable material may be used on the leather cover to exclude moisture from the same.

As an article, the tire casing herein shown and described constitutes the subject of 'my application for patent Serial No. 421,535), filed h/Iarch 16, 1908.

I claim:

l. A method of making outwardly leather metal studded pneumatic-tire casings, the same consisting in forming a pair of itat circular blanks from sectors of soft, dry finished leather; joining the blanlts at their outer circumferential edges to form a transversely U-shaped shell; truing the shell on a mandrel Without appreciable stretching; securing metal studs to the trued shell and adhesively attaching the product to an open casing-carcass having outwardly beaded exa transversely.Li-shaped shell.; adhesirel)v tremities with which said product is made to f conform without closing the opening.

2. A method of making outwardly leather metal studded pneumatic-tire casiugs, the

saine consisting in forming a pair of flat' circular blanks from a series of sectors of soft, dry, finished leather; joining the blanks at their outer circumferential edges to form a. transversely U-shaped shell; adhesively securing metal studs to trued shell and shell; truing the reinforced shell on a inanrel without appreciable stretching; securmetal studs to the trucd shell. and adhcsively attaciing the product lo an open casing-carcass havin" outwardly beaded extremities with which said product is inadeto conform Without closing the opening.

3. A method of making outwardly leather metal studded pneumatic-tire :asin the saine consisting in forming a pair of liat. circular blanks from a series of sectors ot sott, dry finished leather; joining the blanks at their outer circmnfcrential edges lo. "r'i curing an outer leather treat-A; ip lo the shell; truing the reinforced shell on a mandrel without appreciable stretching; securing metal studs to the trued shell, and atl-- hcsirely attaching` the product. to an open casing-carcass having outwardly beaded extremities with which said product is. made to conform without. closing the opening.

il. A method of making outwardly leather metal studded pneumatic-tire casings, the same consisting in forming a pair of flat circular blanks from a series of sectors of soft, dry finished leather; joining theblanlts to the shell; truing the reinforced shell on :L

mandrel Without appreciable stretching; securing metal studs to the trued shell, and adhesively attaching theproductto an open casing-carcass haring outwardl)y beaded extremities with which. said product is made to conformi without closing the opening.

In testimonir that lf claim the foregoing l hare hereunto set niy hand at lilwaukee in the county of Blilwaukee and State of Tisconsin in thc presence of two Witnesses.

lt is hereby certitied that in Letters Patent No. 931,207, granted August 17, 1909,

upon' the application of John O. King, of Milwaukee, liso-onsin, for airimproycment in Making Casings for Pneumatic Vehiclc-"l`ires,an error appears in the printed specification requiring correction, follows: In line 66, page 2, the Words metal studs to trued shell and shouldhe stricken out and the Words 0n nner laat/er treadsm'p to zf/Le .inserted instead; and that the said Letters Patent shouldr-beread with Patent Otlice.

. Athis correction therein that the same may conform to lthe record of the case in the [SEAL] C. CA BILLLNGS lt is hereby certi tied timt in Letters Patent No. 931,207, granted August 17 1909,

upon the application of John O. King, of Milwaukee, Wiscon sin, for an improvement in Making Casings for Pneumatic Vehiclerl`i1es,"`zm error appears in the printed specification requiring coi'rectifm, as follows:

ln line (S6, page 2, the words metal lbuds to fiued Shell and Should lle stricken out :xml the words (In 2mm* lauf/1er tread stri/J to the inserted inst/cad; und that the .smid Letterl l this correction therein Lliat` the same may Patent Office.

Signed'and Scaled this 28th day of September. A. D.. 1909 is EAL j l allient should he rend wml conform to the record of the euse in ille C. C. BILLINGS 

